Song Xiaoshi

The parts of your product nobody wants to write — written, tested, and ready to drop in.

Two source-code packages. Both are things you could spend weeks getting subtly wrong. Both come with the tests that prove they aren't.

See pricing — from $25

Illustration of a webhook server emitting signed events to downstream endpoints

Webhook Forge

Production-grade Webhook receiver · source code

Signature verification that can't be bypassed. Idempotency without a race condition. Retry semantics your caller can actually act on. Replay protection. An audit trail that records the duplicates you chose to ignore.

Python 3.13 · 69 passing tests · Lemon Squeezy / GitHub / Stripe / Cloudflare Workers adapters

$25.00 one-time

Buy

Illustration of one document branching into three platform card formats

One Idea, Three Platforms

Rewrite templates & publishing SOP

41 templates that make one idea hold up on X, LinkedIn and WeChat — where the hook, structure, tone and length limits are all different. Plus the SOP, the rejection-reason fixes, and the pitfalls that only show up once you ship.

Templates · full publishing SOP · platform rejection fixes · runnable skill package

$25.00 one-time

Buy

Why pay for source code instead of a tutorial?

Questions

How do I receive the files?

Instantly. The moment your payment clears, you are taken to your order page, which carries a download link tied to your own order. Keep it — you can download again any time from the same link.

Can I use these in a commercial project?

Yes — internal use in commercial projects is permitted, including if the product you build with it is sold. Reselling the source itself, or publishing it in a public repository, is not. The exact terms are on the Terms of Service page.

What if it doesn't work for me?

Email us within 14 days of purchase and we'll refund it. See the Terms for details.

Do you offer refunds on digital downloads?

Case by case, yes — we would rather refund than have you stuck with something unusable. See Pricing for the summary.